Printing-machine



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J. BRGOKS.

` IRIITILNG-` MAHINB. Y

No. 413,491. Patented 00L-22, 1885.3).`

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d? u l 1 4 WITNEssl-:s: .z VvINVENTIJH Q@ f2 0M; ATTORNEY UNITED STATESPATENT OFFICE. f

JOHN BROOKS, OF PLAINFIELD, NEW JERSEY.

PRINTING# MACHINE.

SPECIFICATION forming part of Letters Iatent No. 413,491, dated October22, 1889.

Application filed March 16, 14889.

To @ZZ whom it may concern:

Be it known that I, JOHN BROOKS, a citizen of the United States,residing at Plainfield, county of Union, State of New Jersey, haveinvented certain new and useful Improvenients in Printing-Machines, ofwhich the following is a specification.

My invention relates to cylinder presses wherein the type-bed isreciprocative lengthwise and the sheet passes around animpression-cylinder having continuous rotation. In machines thusoperated it is essential that the impression-cylinder make tworevolutions during the advance and return stroke of the type-bed. Thecylinder is elevated by automatic mechanism during the returnstroke ofthe type-bed, so that the sheet, being carried around twice by therotation of the cylindenis permitted to avoid contact with the type-bedafter the impression has been made.

My inventionconsists in a novel combination of lparts whereby the web ofpaper is automatically fed, cut, and delivered to the grippers of theimpression-cylinder at the surface speed of the latter at intervalscorresponding with every second. revolution of such cylinder; and inorder that others shall be enabled to understand and use my saidinvention I will. proceed to describe the con-V struction and operationof the devices.

I employ herein in. novel combination and point out in the appendedclaims the features that I claim as new.

Referring to the drawings, in which like numerals of reference denotecorresponding parts in the several views, Figure l is a side elevationof a printing-machine of the character referred to 5 2, a detail view,shown in plan, of the gripper-operating mechanism; Fig. 3, a sectionalelevation taken on the line c, Figs. 5 and 6; Fig. 4, an enlargedsectional view of the clutch employed herein; Fig. 5, an end elevationof Fig. l; and Fig. 6, a transverse section of the lower part of themachine, taken at the line 1/ y, Fig..l.

2 2 are the side frames; 3, the base of the machine, and L thetype-bed-bearing frame, having Ways 5 5, upon which the platenrcciprocates.

I illustrate herewith a double type-bed 10, having forms 6 and 7,corresponding with double impression-cylinders 8 and 9, wherestanno.303,595. (No modela by both sides of a sheet are printed successively,as will hereinafter appear.

llis a gear-bearing frame projecting out from the side of the machine,bearing the driving-shaft l2, having fast and loose driving-pulleys 1314, Fig. 6, and having a driving-pinion l5. The pinion l5 is in a common6o vertical plane with the spur-wheels 16 17 upon the shafts of theimpression-cylinders, and imparts motion to them through theintermediate gears I8 and 19 20, respectively. The gears 2l 22 transmitmotion from the 65 driving-pinion l5 to the pinion 23 of the transverseshaft 24, by which motion is imparted to the cutting mechanism and tothe cylinder-elevating mechanism. The gear 21 is upon the vibratingdriving-shaft 25 of the 7o type-bed, the bearing 26 whereof is fixed toa swiveled yoke 27, having bearings at 28 `28 upon brackets 35, so thatthe gear 2l is subject to an oscillating motion varying from one side toanother of a vertical plane, and its teeth are slightly beveled, as seenin Fig. 6, to accommodate the oscillating motion and to intermesh at alltimes with the adjacent 0ears. D The movement of the vibrating shaft 258o for imparting reciprocation to the type-bed, being well known to theart, will be briefly described here. The type-bed is shown at oneextreme limit of its stroke in Figs. land 3, the shaft 25 being level;but the latter is 85 i shown in an inclined position in Fig. 6 while thebed is performing its stroke. The inner end of the shaft 254 bears apinion 29, that engages with the double-sided rack 30, supported uponthe depending frame 3l of the 9o type-bed. The gear 29 and its shaftarevertically movable in the ways of the segment 32, fixed to the frame 5,a boX 33v being provided to slide in the ways of the segment and bearthe shaft 25. The pinion 29 has a mu- 95 tilatcd tooth or double-widthblank space between its teeth at one point of its circumference, whichfits a stud 34 at each end of the rack. As'the pinion rotates, say, fromthe position in Fig. 3, it first rises, drawing the roo rack andtype-bed toward it. Then, remaining in the position illustrated in Fig.6, it propels tlie rack, describing an orbit relatively to the rack andthe type-bed, (indicated by the broken line 36.) Passing thence underthe rack at its opposite end, the gear 29 imparts the return-stroke ofthe type-bed. In order to retain the pinion with relation to the stud 34after it leaves the rack and during its passage around the stud, thesaid pinion is provided with a second stud 37, fixed in a radius withthe mutilated tooth, which stud moves in the semicircular path of theguideways 38 at each end of the rack concentric with the stud 34, whichlatter acts as a pivot upon which the pinion turns upon leaving theteeth at one side of the rack to be transferred to the teeth at theother side.

39 indicates anti-friction rollers borne at the proper distance apart inthe movable strips 40 and interposed beneath the typebed upon its waysto ease the motion. The transverse shaft 24 is provided with a worm 41,which drives the worm-gear 42 and the shaft 43, having bearings at 44 45Within the frame of the machine. Shaft 43 terminates at the point 46,and the shaft 47, adjacent and in line therewith, (see Fig. 4,) isrendered operative or inoperative by the interposed clutch 48, fullydescribed in a separate application filed simultaneously herewith,Serial No. 303,594, but also briefly described hereinafter for purposesof reference to its functions.

51 is a transverse shaft havingjournals 52, Fig. 5, at each side of themachine, and there are miter-gears 53 54 upon the respective shafts 4751, transmitting motion from the one to the other.

The elevating mechanism for the impression-cylinders consists,substantially', of that described by me in Letters Patent No. 274,558,and will therefore be but briefly referred to.

The cylinder-shafts 55 55 are journaled in boxes 56, that areverticallymovable in guideways in the frames 2, as indicated. The boxes56 are supported (when raised) by vertical rods 57 58, that arescrew-threaded, respectively, with right and left screw-threads at thoseportions which bear the toothed nuts 59. The nuts 59 are sustainedagainstend- Wise movement by the mortises in which they are located, andsustain the rods 57 58 and the impression-cylinders.

60 are springs that cushion the descending movement of the cylinders.

6l are racks reciprocating in the guides indicated in Fig. 6.

62 are rook-arms fixed to the transverse rock-shaft 63 and connected tothe racks by rods 65.

64 are rock-arms whereby the rock-shaft 63 is operated from the cams 66,employed in duplicate upon the transverse shaft 51. The rods 67 arebroadened at the end adjacent the cams, and are slotted with slots 68 toguide them in reciprocating over the shaft. The rods 67 also bearanti-friction rollers 69, upon which the cam acts to impartreciprocative motion through the connected parts to the racks 61, thuselevating the cylinders intermittently and alternately.

70 is a rotary cutt-ingknife similar to that described by me inapplication for Letters Patent, Serial No. 242,219. The knife 70 isfixed to the shaft 72, being radially adjustable thereon by means of itsslots 71 and set-bolts therein for clamping it to the shaft, which isflattened on'one side to receive it.

73 is the cutting-cylinder against which the knife acts, the pinion 75of which is driven by the spur-gear 7 6,Fig. 4, on the knife-shaft. Whenthe radius of the cutting knife is changed, the spur-gear 76 is alsosubstituted by another spur-gear to correspond with the altered radiusof the knife. The shaft 72 is supported in vertically-adjustable boxes77, that are raised and lowered by screws 78, operated simultaneously bythe miter-gears 79 and a counter-shaft transverse to the machine toaccommodate the alterable position of the knife.

80 represents the roll of paper web from which the paper is drawn by thefeed-rolls 81 81, and the latter are driven from the cutting cylinderpinion 75 through the intermediate gears 82 82, the motion beingtransmitted from one feed-roll to another through gears 83, Fig. 5.

The cutting-knife shaft 72 and its connected mechanism are driven by thecounter-shaft 84, receiving its motion from the shaft 51. The shafts 7284 51 are connected by miter-gears 85 85 and 86 S6, the bearings 87 88of the shaft 84 being swiveled by brackets upon the ends of the shafts72 and 5 1, and the upper bearing 87 is provided with a rotary sleeve 89Within it, which bears the miter-gear 85 on the shaft 84, While thelatter is lengthwise movable in the sleeve, and has a feather 90 torotate the sleeve and gear with it.

The frame or carriage 91, bearing the cutting mechanism, is adjustablehorizontally on the frame of the press, moving on slides 92, to whichthe side frames of the carriage are retained by gibs 93, the adjustmentbe` ing effected by turning the pinions 94, that are located each sideof the carriage upon a transverse shaft'96 (shown in dotted lines inFig. 5) and engage with racks 95, attached to the side frames 2 of themachine. The described movable connection of the ruiter-gear to theshaft 84 and the swiveled brackets permits the horizontal adjustment ofthe carriage 91 without interference with the transmission of motion tothe cutter and the feed-rolls.

97 97 are tapes or conveying-belts for conveying the sheets from thecutter to the first impression-cylinder 8. The tapes are carried overthe several rolls 98 99 100 101, moving in the direction indicated byarrows, as will be understood by an inspection of Figs. land 3. Theconveying-belts are driven by the rolls 100 101, the latter bearing agear 102, Fig. 5, on its shaft that engages directly with the gear 17 ofthe cylinder-shaft, and the roll 100 bearing a gear 103,that meshes withthe gear 104 on one end of an intermediate shaft 105, on the oppositeend whereof a gear 106 engages with the gear 17, thereby giving the IOOIIO

` 1:0115 ioo 101.

proper directions of rotation to the respective, The elevation of thecylinder` and its gear 17, before described, being but slight, does notmaterially interfere with the meshing of the gear 106 with 17. Thejournals of the shaft 105 may be made to yield vertically, however, ifrequired.

107 represents one of a series of guides that direct the leading end ofthe paper to the rolls 98.

The conveying-belts do not seize the sheet, but exert a moderatefrictional pressure thereon, moving at the surface speed of the im-`pression-cylinders.

The web is usually perforated rather than cut by the cutting-knife,being separated sub- The breaking or parting of they grooves upon themcorrespon ding to each conends of the grooves in the blocks.

veying-belt, so that the surface of such rolls intermediate to thegrooves impinges directly upon the paper and separates the sheet fromVthe web at. the arrival of the leading end in the bite of the rolls. Thebreaking-rolls are geared together and are driven from the shaftA of thetape-roll 101 by a counter-shaft 110,

having miter-gears and swivel-brackets of a.

construction corresponding to that described with relation to the shaft84. Such arrange ment of the breaking-rolls is describedin detail in myapplication for Letters Patent, Serial No. 268,079.

The grippers 111 112 of the respective impression-cylinders 8 and 9 havetheir shafts provided with grooved blocks 113 exterior to the cylinders.The grooved blocks 113 are tripped by engagement with the studs 114 115,Fig. 2, so as to shift the grippers from an open to a closed position,or vice versa,when said studs are brought into alignment with the openThe studs 114 are located at different radial distances from thecylinder-shaft, as indicated, so as to correspond with and pertain tothe shifting of the opposite open ends of the grooves in the blocks,namely: In the instance of the cylinder 8, the stud 114, when projected,will enter the end of the block farthermost from the shaft, imparting tothe grippers 111 a closing movement, said stud passing out the same endofthe block at which it enters, and the stud 115, when advanced, willenter the end of the block nearmost the shaft, imparting to the grippers111 an opening movement.' In the instance of the cylinder 9, rotating inan opposite direction to that of the cylinder 8,

` the stud 114, when advanced, will enter the end of the blockfarthermost from the shaft,

imparting to grippers 112 a closing movement, while the stud 115, whenadvanced, will enter the end of the block nearmost the shaft, impartingto the grippers 112 an opening movement.

The studs 114 and 115 are advanced and fulcrumed at 117 and bearing astud 118, that fits the groove of a cam 119. The cam 119 is rotated oncefor each two revolutions of the cylinder to which it pertains by meansof the gears 120 121 and the movement is so timed that in starting, say,from the position of the machine in Fig. 3, the grippers of the cylinder8 seize the head of t-he sheet as it-is delivered from the tapes thestud 114 being advanced and as in the course of rotation, the gripperscome opposite the stud 115, and the latter, being advanced, throws thegrippers of the cylinders 8 open;

The grippers 112 of the cylinder 9 atthis.

time, being open and opposite the grippers 111, are closed by engagementwith the'ad- .retracted by means of the lever 116, Fig. 2,

vanced stud 114 of the cylinder 9, the said grippers112 seizing the headof the sheet `as it is released by the grippers 111. In the course ofrotation of the cylinder 9 tliegripy,

pers thereof pass the stud 115, which is with drawn, thence repassingthe stud 114, now retired. The grippers 112 subsequently shift to an.open position at their second arrival opposite the stud 115, delivering`the sheet to the conveying-belts 123, suitably arranged to take thesheet to the point of final delivery.

The grippers are retained in `au open or IOO closed position by a spring125, connected and operated in the usual manne-r. The shaft 5l and thecutting-knife shaft 7 2 make Yone revolution foreach two revolutions ofthe impression-cylinders, cutting one sheet at intervals correspondingwith the. intervals at which the grippers 111 close at thereceivingpoint, as in Fig. 3, and the breaking-rolls 108, moving at thesurface speed of the impression- 1 cylinders, detach the sheets at aperiod whereby they will arrive at grippers 111 at the proper time.

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In order that the type-beds-may be moved A to obtain access to them inplacing the impression Without disturbing the feeding 'and cuttingmechanism and the paper therein, the clutch 48 is provided, making therequired disconnection. It is essential, therefore, in disconnecting thecutting mechanism from the cylinder and type-bed-dri vin g mechanismthat the clutch 48 shall stop the cutting mechanism at a given pointwith relation to the movement of the impression-cylindersor reengage theparts in the same relation. It is also essential that both cylindersshould remain in a partly-elevated posit-ion during such disconnection,which is accomplished by the point of stoppage of the cams 66 at anintermediate position.

Fig. 4 representsthe clutch disconnected.

The shafts 43 and 47 terminate and' abut in,

the bearing 45. The sleeve 50 forms a part of the clutch-disk 126, beingkeyed to the,

shaft 43. The movable clutchdisk 127 is op.

` tion to the impression-eylinders.

erated by the lever 128, and the disks have a corresponding transverserib and socket located eccentrically to the shaft, so as to interlock ata single point of rotation. 428 is a cam held stationary by its shank131, which forms a bushing in the bearing 19. The pin 129, projectingfrom the periphery of the movable clutch-block, fits the depressionshown in one side of the cam, the opposite side of the cam having anelevated surface that prevents the disengagement ot' the block 127,except when the pin is coinciden-t with the depression. The release ofthe clut-ch and the entrance of the pin into the depression issimultaneous, due to the position of the inclined surfaces of the camwith relation to the tooth of the clutch, which do not permit thecomplete withdrawal of the tooth until the positive arrest of the pininthe depression and stoppage of the cutting mechanism.

In operation the cutter is adjusted to the proper radius to cut theintended length of sheet, the carriage 91 is correspondingly adjustedwith reference to the distance of the cutter from the grippers of thefirst impression-cylinder, and the breaking-rolls 108 are 'adj usted todeliver the sheets at the proper time. The clutch 48 being released, themachine is started, the inkdistributing-rolls (not shown in thedrawings) performing their function preparatory to printing. The clutch`is then closed, the cutting and feedingmechanism coming into play withthe proper rela- The sheet is carried around the cylinder 8, (on theprominent portion of its circumference,) the cams 6G moving in thedirection of the arrow, lowering the cylinder 8 and elevating thecylinder 9, so that the impression is received on the cylinder 8 fromthe portion G of the typebed. At the half-revolution of the cylinder 8the head of the sheet is transferred to the cylinder 9, thereturn-stroke of the type-bed commencing, and both cylinders being`partially elevated by a half-revolution of the cams G6 from the positionillustrated in the drawings. As the sheet advances under the cylinder 9the latter is lowered, and the impression received on the opposite sideof the sheet from the portion 7 of the type-bed, and as the grippers 112come opposite the conveying-belts 123 a second time the head of thesheet is delivered to the said tapes, the machine resuming the positionin the drawings.

It is to be understood that the features herein claimed are applicableto a single-cyl inder platen press, likewise as to the doublecylinderpress. It is also to be observed that the breaking-rolls 108 may bepermanently fixed at a distance from the cutter corresponding with amaximum length of sheet, as at the position indicated by dotted lines130, the lineal adjustment ot' the cuttingpoint being the sole meansoftallying the sheets with reference to the impression-cylinders.

i Igclaim as my invention- 1. In a printing-machine, the combination ofa type-bed reciprocative in its plane of impression, animpression-cylinder co-operative therewith having continuous rotation, agripper mechanism for receiving the head of a sheet at each secondrotation of the cylinder, a rotary cutter adjustable at variabledistances'from the impression-cylinder, conveying-belts for conductingthe sheets from the critter to the grippers of the impressioncylinder,mechanism, substantially as de scribed, for imparting to the rotarycutter a single revolution for each two revolutions of the impressioncylinder, and driving and driven shafts of said mechanism having' aclutch that is releasable at a single point of rotation of the drivenshaft and of the cutter.

2. The combination, in a printing-machine, of a type-bed reciprocativein its plane of impression, an impression cylinder or cylindersco-operative therewith having continuous rotation, cams and elevatingmechanism, substantially as described, for elevating said cylinder orcylinders, a rotary cutter adjustable at variable distances from thecylindergrippers, mechanism for driving said cams and said cutter athalf the rotative speed of the impression cylinder or cylinders, adriving and driven shaft of said driving mechanism connective by aclutch that is releasable at a single point of rotation of the drivenshaft, corresponding with which point of ron tation thecylinder-elevating cams are at an intermediate position and the rotarycutter is at an inactive position.

The combination of a printing mechanism having a rotary impressioncylinder or cylinders, and grippers thereon for seizing the paper, arotary paper cutting and feeding mechanism, and a clutch, substantiallyas described, for connecting or releasing the said cutting and feedingmechanism and the said printing mechanism at a single point of relationand at the inactive period in the motion of the cutting mechanism.

at. The combination, in a printing machine, of a type-bed bearing theform or forms reciprocative in its plane of impression, animpressioncylinderor cylinders having continuous direction of rotation, mechanismwhereby the cylinders are advanced or retracted toward or from thetype-bed, a rotary paper cutting and feeding mechanism adjustable in itsaction with definite relation to the printing mechanism, and a clutchfor connecting or releasing the cutting and feeding' mechanism and thecylinder advancing and retracting mechanism with the cylinder andtypebed-driving mechanism at a single point of relation, as specified.

JOHN BROOKS.

Witnesses:

H. F. PARKER, C. W. FORBES.

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